Decking Recommendations for Built-Up Roofing and Modified Bitumen Membranes

Introduction The Asphalt Roofing Manufacturers Association (ARMA) recommends that the structural roof deck meet certain minimum requirements to be an acceptable substrate for the specified roofing system. Generally, all decks should be clean, dry, and securely fastened to the building structure with no abrupt level changes exceeding

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Cold Weather Recommendations for Built-Up Roofing

Introduction Application of any type of bituminous roofing system in cold weather can be achieved successfully if precautions are taken. When roof systems are installed in outdoor temperatures below 50°F, the installer can expect difficulties including but not limited to: maintaining the proper asphalt temperature at the

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ARMA Lightweight Structural Concrete Roof Decks Statement

Decks may not be suitable for durable, sustainable roofing systems The roofing industry is increasingly experiencing roof system performance issues when roof systems are installed over lightweight structural concrete roof decks. The high moisture content of these decks, coupled with long drying times and an inability to

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